Cooler for condensing mixtures of hydrocarbon and steam.



G. STILL. GOOLER PORGONDBNSING MIXTURES 0F HYDROGARBON AND STEAM APPLICATION FILED SEPT. 28, 1911.

Patented Sept 5 rill/II Fir/1111111471 7/11111/1/1/1/17/116 Minesses UNITED s TEs PATENT OFFICE.

CARL STILL, OF RECKLINGH AUSEN, GERMANY.

' COOLER FOR CONDENSING MIX'I'ITRES 0F HYDROCERBON AND STEAM.

- Specification of Letters Patent. Pat'ented sepfi, 16,1913. Applicatlomflled'september art-4e11,. SorialNb.-651 748i 7 0 all'wliomit mag concern Be it known that 1 CAnL-SaanL, a citizen of the German Empire, and residing at distillation, which' are mixed with steam,

are condensed incooling apparatus intoaliquid' which is then, in a special, receptacle,

separated into oils and' water, according tothe specificgravity.. This treatment is, as

a rule, carried out consecutively or step-bystep, in severalseparate'piecesof apparatus. The apparatus according tothis invention contains a combination of such individual piecesinto a complete whol'e, whereby uniform I Working is rendered possible and a suitable simplification of the arrangements hitherto in use is obtained.

The accompanying drawing shows in longitudinal section the preferred formof apparatus, which is constructed as an upright cylinder.

The vapor mixture of hydrocarbon and.

steam to be condensed enters from aboveatm, and passes through the cover into a distributing space a, whence it passes through a multitubular cooler b in which the vapor mixture is cooled and largely or wholly condensed by wash oil saturated with hydrocarbons. The wash oil introduced for this purpose at n and carried away from the 'upper part at 0 acts as a cooling medium and will also be considerably preheated (for subsequent distillation) by the heat given oil by the vapors during condensation. The condensed liquid and the residue of noncondensed vapors pass into the collecting chamber a whence they are both carried away to be separately subjected to a further cooling. The liquid that collects at the bottom of the chamber 0 runs by a lateral outlet 1" into an outer worm d arranged in the middle part or zone 9 of the apparatus which forms a. second cooler beneath the above named cooler b. The lower discharge The residuallvapors in the upper part of the chamber a above the liquid pass by a second lateral outlet 5* arranged at a higher level than the first named outlet 1' into the second worm arranged within the worm d, where the residue-of the vapors is condensed and where, at thesame time, this condensed liquid while flowingalong the inner surface of: the worm: f is considerably cooled. The

cooled liquid leaves the worm f at its lower end 9, trickling down in: athin jet. Both worms d and f within the chamber are surrounded by the same cooling me ium,

namely, water which enters at the lower part of the cooling chamber at u and is discharged at the upper part thereof at '0.

The lowermost chamber is the collecting chamber into which the liquid from the innor wormenters at its discharging end g, while the quantity of liquid carried through the outer worm d enters said chamber p through' the'tube it, said chamber enabling the two liquids in the mixture to be separated according to their specific gravity. The heavier liquid, water, is thendrawn fromnthe lowest point of the chamber p by .the tube is, while the lighter oil is drawn ofi' at a point higher up, at Z, for further treatment. Thus the arrangement of the apparatus, being of simple construction, en-

ables the whole of the individual treatments necessary, from the beginning to the end of the process, to be carried out in their natural succession.

I claim as my invention 1. In coolers for condensing mixtures of hydrocarbon and steam, the combination of a vertical cylinder having transverse partitions thereof forming a lower chamber, a worm chamber, an upper chamber, a tube chamber and a distributing space; tubes in the tube chamber and connecting the distributing space with the upper chamber; a pair of worms in the worm chamber and connecting the upper and lower parts re spectively of the upper chamber with the corresponding parts of the lower chamber;

means for conducting cooling fluid to the worm chamber, an upper chamber, a tube chamber and a distributing space, tubes in the tube chamber and connecting the dis tributing space with the upper chamber; a pair of worms in the worm chamber and connecting the upper and lower parts re-.

spectively of the upper chamber with the corresponding parts of the lower chamber; means for conducting cooling fluid to the tube chamber; means for conducting cooling fluid to the worm chamber; and discharge means for the upper and lower parts a vertical cylinder; a series of vertical vapor condensing tubes therein; means for feeding the vapors into the said tubes; means for passing a cooling oil around said tubes; a chamber beneath said tubes for receiving the vapors and liquid therefrom; a worm communicating with the upper part of the chamber for the vapors, and another worm communicating with the lower part of the chamber for the liquid emerging therefrom, both worms extending lower than said chamber; means for cooling the two worms, and another chamber receiving the vapor worm at its upper partand the liquid worm at its lower part for finally separating the lighter and heavier liquids and means for discharging the liquids from the last named cham- 4. In a cooler for condensing mixtures of hydrocarbon and steam, the combination of a vertical cylinder; a series of vertical vapor condensing tubes therein, means for feeding the vapors into the said tubes, means for passing a cooling oil around the tubes; a chamber adapted to receive the vapors and liquid from the tubes; a worm for the vapors and another worm for the liquid emerging from the said chamber and communicating with the upper and lower parts of the chamber respectively and extending beneath the chamber; another means for passing a cooling fluid around the active-part of the worms for cooling the Worms; another chamber for finally separating the lighter and heavier liquids and having its upper and lower parts communicating with the Worm for the vapors and the worm for the liquid respectively; said worm for the liquids being formed on the outside of the apparatus so as to extend from below its active part to a point above its active part; and means for discharging the liquids into last named chamber.

In testimony whereof I aflix my signature in the presence of two witnesses.

' CARL STILL.

Witnesses;

ERNST KRAMER, Ams VANnoRr. 

